This is a discussion on 300whp within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; So I have a 2003 wrx bug eye 2.0 turbo I am looking into fuel upgrades and turbo and fmic. ...

300whp

So I have a 2003 wrx bug eye 2.0 turbo I am looking into fuel upgrades and turbo and fmic. Those are my next steps on the car. I am just wondering what is a good size fuel injector for a aftermarket turbo and a good turbo but nothing way crazy. I am looking for good brand ideas and sizes of stuff. Looking for 300-350whp.

What I am looking for
. Good reliable parts for Daly driver
. What is a good order for the upgrade
. Good sizes on top feed injectors
. Good size on turbo
. Good size on fuel pump

Your exhaust system is going to need to be done in addition to the modifications you listed if you want to see the benefit. The downpipe at least.

I would do the injectors/fuel pump (injector dynamics injectors, probably 1000cc, and either walbro and DW are good fuel pumps), as well as replace the intercooler first. Since you have a bugeye your stock BPV should be fine for 300-350 whp. I would actually stick with a top mount intercooler for your power goal and go with a ProcessWest or ETS.

Then I would do the turbo. Blouch turbos have a great track record and you could get your power goal easily with a TD05H - 16G turbo.

BUT...I agree with lytec. Get all your maintenance up to date and ensure the engine is healthy before you start modding heavily. And do a ton of research and learn about the modification you are going to make. You will need to decide on things such as tuning route, and supporting modifications. With increasing the power that much it would be wise to also look into getting the suspension/brakes up to the task as well.

all of the above info is good advice. the 02 have the "weaker gearsets" they made the gears thicker in 04 or 05.

you'll probably need a larger intake, may need a new turbo inlet depending on the condition of yours. if you have access to e85 it'll be easy with a 16g. maybe 18g if your stuck with 91

False.

The gearset was widened to RA-width gears at some point during 2002. Some late-model 2002 WRXs received the updated gears while some early-model 2003 WRXs received the preliminary gearset. After late 2002, all WRXs received the updated gears. These gears were carried through 2007.

From what they say that the tmic is fine so I took out the fmic idea. The fuel pump I can do but the injectors I will probably have someone else do it. Pluse a tune and a turbo I know the turbo will probably cost the most out of all of it. So what do you think I will be spending?

Also already have all the support mods up to this point.

Hit me with some prices

.400-500 on injectors
.150-300 on fule pump
.tune 400
.turbo?

I can always get used on turbo and rebuild it later on. But just that with no laber on the injectors is 950-1200.
And I will probably have it all done at once when I get it all.

400 for a tune seems quite low. around here a solid protune on a dyno runs 600-800$. you could pickup a used turbo for around $400.. fuel pump new is like $100 for a walboro 255..i bought used but BNIB injectors 750cc DW for $250. i bought used turboback for 325$ and have seen them go cheaper. intake cobb was $50. GM ebcs was $40 new. manual bcs was $80ish used. bigger tmic like an sti tmic i see go for like $150. just depends if you want all new parts, if u want to wait for a good deal, and of course what item and brand you want.

Also, you'll need to upgrade your brakes and handling to keep the power on the ground.

Turbos are around $1000
Good TMIC is around $1000
Tune is around $400-600
TBE is around $800-1500
TGV deletes are a good idea at $250
Injectors are around $450
Fuel pump is $100
Intake will be around $200
UPpipe will be around $200
Gaskets will be close to $100

All-in-all you're looking to spend AT MINIMUM $4000 to do this correctly, and that's just in the motor department. Bushings should be a priority -- Trans mount, crossmember bushings, steering rack bushings, rear diff bushings, etc.

400 for a tune seems quite low. around here a solid protune on a dyno runs 600-800$. you could pickup a used turbo for around $400.. fuel pump new is like $100 for a walboro 255..i bought used but BNIB injectors 750cc DW for $250. i bought used turboback for 325$ and have seen them go cheaper. intake cobb was $50. GM ebcs was $40 new. manual bcs was $80ish used. bigger tmic like an sti tmic i see go for like $150. just depends if you want all new parts, if u want to wait for a good deal, and of course what item and brand you want.

The only turbo you'll find for $400 is an unknown mileage VF39 or TD04-13T.

Used MHI turbos go for $600+. Garrett turbos at an even higher premium.

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